From TV Guide Online: Ask Ausiello:

After an exhaustive search, producers have tapped 14-year-old Willa Holland to play Marissa's !@#$%^&*]y younger sis, Kaitlin. She'll debut in early '06. Fans of HBO's The Comeback will no doubt recognize Holland as Franchesca's pal, Kalla. Oh, how I miss my Valerie.

I did some rummaging and found these.....she REALLY resembles Mischa !! Cute little girl...

Also, you can check out her website @ WillaHolland.com

Should be good when Kaitlin returns. At least on of the Cooper girls needs to be !@#$%^&*]y and dominaring as their mommy.

What happen to the old Katlin, the one that was in Season 1

I haven't really been keeping up with the OC

They shipped the character off to boarding school from what I've been told and what I have read. I never really started watching until the end of Season 2

She kinda looks like a prettier Avril Lavigne.

Not seein' it, KR!

I read the "Sides" for the first episodes where she returns to Newport and I only hope it's as entertaining as it seems on paper.

What's the "sides"??